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Unformatted text preview: shows the change in the form of the force expression when the electrical variable chosen as independent is changed from 2 to i. The result of (3.1.37) can be generalized to a system with any number of terminal pairs in a straightforward manner (see Table 3.1). For a magnetic field system with N electrical terminal pairs and M translational mechanical terminal pairs the conservation of energy equation becomes NM dW, = , i, dij , fj" dzj. (3.1.38) 1=1 j=1 We now use the generalization of (3.1.31), N N N Zij dA, = Xd(ijA) A2, di 1 , (3.1.39) =1 j=i1 I t * This manipulation, which represents conservation of energy in terms of new independent variables, is called a Legendre transformation in classical mechanics and thermodynamics. 3.1.2 APDF Split DEMO : Purchase from www.APDF.com to remove the watermark...
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This note was uploaded on 02/10/2012 for the course MECE 4371 taught by Professor Liu during the Fall '11 term at University of Houston.
 Fall '11
 Liu

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